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PY Online Forums - Bringing the Pontiac Hobby Together > General Classic PONTIAC TECH > Pontiac - Street > 87 vs 91/93 Octane?
 
 
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Old 09-14-2004, 11:41 PM
Young One79TA Young One79TA is offline
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The reason they probably used lower octane in the 60's was because it was leaded gas which helped boost the octane and prevent detonation. Todays gas is unleaded.

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